Painting device



PAINTING DEVICE Filed July l5v, 1939 2 Sheets-Sheet 1 ATTORNEY.

Patented Dec. 31, 1940 U'NrrsosTATss Herbert B; Sabin, Shaker Heights,hio, assignor to The Garland Company, a corporation of Ghio- Applieafion. Jury kis, i939, sei-iai N6. 234,698 14 claims? (c1. ei-sa) Another object is to provide a device iorapply-v ing paint to a greenhouse bar and spreading it evenly upon the portion of the bar extending above the glass.

Another object is to provide a device for applying paint to a greenhouse bar, Which issimpleto manipulate and eicient in operation.

Another object is to provide algreenhouse bar painter which applies the proper amountof paint to the bar, and Which properly spreads the paint upon the portion of the bar being painted.

Another object is to provide a greenhouse` bar painter Which doesnot smear or spread the paint upon other portions of the greenhouse.

Another object is to providea greenhouse bar painter having only the brush contacting the `bar being painted. l

Another object is to provide a brush for a greenhouse bar painter which is adjustableto different conditions of operation.

Another object is to provide a greenhousefbar painter adapted to ride upon a greenhouse in `cooperative relationship to the: bar being painted Without contacting the portion of the `bar being painted and adapted to hold thebrushes in proper painting engagement with the bar.

Another object is to provide a greenhouse bar painter having self adjustable brushes. y

Another object is to provide adevice for holding a paint brush in proper painting positien relative to the object to be painted.

Another object is to provide a greenhouse bar painter adapted to maintain paint applying brushes at the proper 4angular position relative to the bar being painted.

Another object is to provide agreenhouse bar painter adapted to maintain the brushes in proper painting engagement with the bar.

Another object is to provide a` greenhouse' bar lpainter adapted to permit tilting of the `brushes as the painter is moved in its painting operation.

Another object is toprovide agreenhouse'bar painter adapted to maintain the `brushes in. proper extensionftoward the bar to insure proper painting engagement.

Another object is to. provide a brush carrying member adapted tolpermit compound movement o f a brush relative to a movable carriage. 1 Another object is the provision of a greenhouse barv painter having angularly disposed brushes adapted to apply paint to the bar and having other i5" brushes; for brushing the appliedpaint;

Another object is the provision of a greenhouse barpanter having paint Aapplying brushes and apparatus for supplying paint to said brushes.

Another object is. the provision of a greenhouse l() bar painter which automatically adusts itself to properly paint said bar.

i `Another object is the provisionof a greenhouse bar painter Whichretains the paint against dripping during. transfer of the painter` from one bar to another.

Another object isfthe provision of a greenhouse bar painter having spaced wheels positioned at the `outside edges ofthe painter carriage and entended below the top of the bar to support the `painter against tipping sideWardS. f Another object is the `provision of a properly `balanced bar painter.`

Anotherobject is the provision of a handle ar,-

rangement f or properly `,maintairling the painter 25 in position.

l Another object is the provision oi a painting device of improved construction and operation. A still further object is they provision of a new painting device rendering a novel and usefulre- .sult.

Other objectsand a fuller understandingof my `invention may be had by referring to the following description and claims-taken in combination With the uacconfipanying drawings' in which, like 35 lreference characters designate Vlike parts of my minvention, `and in which:

Figure 1 is a side view of my greenhouse bar painter shown in operating position on a greenhouse.

Figure 2 is a cross-sectional view of `my device taken through the line 2-2 of Figurel,`

Figure 3 is a detailed view, with portions cut .avvay, of a part of the paint container and the feedingconduit of my device. Figure 4 is a plan view looking down upon` my device. Figure 5 is a View of one of the side brushes of my device in one tilted position, and 1 ``fi`efllle6 is a view of one of the side brushes-.0h50 ,my devicein a tilted position opposite frornthat Inasmuch as the glass roofs oi the greenhouses kept painted to prevent deterioration of the same.

top of the greenhouse bar is rather diicult to do v by hand without also smearing paint upon the glass panes ofthe greenhouse. Y

In the use of the prior devices for applying A the paint to the greenhouse bar wherein the paint applying brushes were carried along in painting position by a carriagecertain difficulties and problemsl have arisen. When the painting device was moved along on top of the bar so that the weight ofthe carriage was carried by the bar the wheels or glides supporting thei c'arriage smeared and defaced the paint applied by the brushes. Furthermore, the bar painting devices were top heavy and tended to tip sidewards upon a pane of glass. AIn the devices wherein the support was by glides or wheels riding on the bar or closely adjacent thereto, considerable manual force and dexterity was required to prevent the carriage from falling over sidewards as the carriage was moved up and down the 'greenhouse during the painting operation. The

mechanical painting devices moreover lacked a flexibility in permitting movement of the brushes as the carriage was moved upon the greenhouse. Itis well known that in obtaining the best results in hand painting the operator holds the paint brush at a tilt or incline to the longitudinal direction in whichthe paint is being applied. It is also known that in proper application of paint the operator using a paint brush by hand al- 'lows or permits a certain give to permit the paint brush to move toward and away from the object being painted as he moves the paint brush along the object being painted. Obstructions and irregularities in the surface of the bar or strip 'of material being-painted require a yielding and adaptability characteristic usually considered possible only by manual painting in the conventional manner. My invention incorporates the desirable characteristics of hand painting together with mechanical exactness by fixed limitations of the yielding movement. My device therefore has utilized all the advantages of hand painting together with the accuracy of aA mechanical device and the added accommodation of a movable painter operable from. a distance. These advantages and improvements together with others will be discernable in the device herein. described and shown. Referring to the several views of the drawings and particularly to Figures 1 and 2 there is shown a carriage II adapted to be moved along the top of the greenhouse. 'I'he carriage II has inclined or sloping wall portions I2 which extend longitudinally of the carriage II. The sloping side walls I2 are inclined at an angle to each other and extend from the outer edges of the carriage II down to the elongated open space 33 Vat the bottomof the carriage VI I. These inclined sides I2 therefore vform a trough adapted to be disposed longitudinally of the bar.

The glass panes 'I3 are supported upon the tioned in each grooved portion I 4 and I5. end brushes 65 have bristles 66 extending down- `edges of the carriage II.

bottom portion I5 of the bar I4 as is more readily seen in Figure 2. The elongated open space 33 is arranged to expose the bar I4 extended above the glass pan 13 and it is this portion of the bar to Which the paint is applied.

The longitudinal end walls of the carriage II are provided With grooved portions I4 and I5, respectively, disposed vertically of the carriage. The grooved end portions I4 and l5 are arranged to accommodate the relatively narrow end brushes 65, one end brush 65 being posi- The wardly therefrom to brush upon the top of the bar Illu The bristles 66 are positioned to extend down slightly beyond the top of the bar 'Ill so that the bristles l66 will i'lex as the carriage is moved longitudinally of the bar and thus assure a good painting engagement of the bristles 66 with the bar 14. To adjustably mount the brushes 65 at their respective ends of the carriage slots 69 are provided in the solid portionv of each brush and extended in a vertical manner. Bolts 6l and wing nuts 68 bolt the brushes 65 to the end portions I4 and I5, respectively. The slot 69 permits the brushes 65 to be raised and lowered into proper position and the tightening of the wing nuts 66 secure the brushes 65 at said proper position.

The carriage II has rear extending portions I3 extending from the rear end thereof, that is, toward the left in Figure 1. Wheel supporting studs I6 integrally formed with or connected to the carriage II provide bearing supports for the four wheels 1I. The mounting of the rear wheels at the ends of the extending portions I3 provide a proper balanced supporty for the carriage II as the carriage IIV is moved up the inoline of the bar 'I4 as illustrated in Figure 1. Rubber tires 12 of a resilient nature provide a cushioning effect for the device as it is moved upon the greenhouse. In many greenhouses the panes of glass overlap in the manner of shingles and the rubber tires 'I2 absorb any shock as the carriage drops from the level of one pane of glass to the next succeeding pane of glass. The wheels 'II including the tires 'I2 ride upon the glass of the greenhouse on opposite sidesof the bar 'M extending above the panes of glass. The support for the carriage and its attachments is therefore widely spaced and positioned adjacent the side As seen in Figure 2 the device has a broad and stable support the 'wheels being positioned adjacent the outer edges of the carriage I land riding upon the greenhouse below the level ofthe top of the bar 14. The combination of the broad supporting base of the spaced Wheels and the riding of the wheels upon a level lower than the top of the bar gives such a stability to the device that it does not tip sidewards. No eiort is required to maintain the balance of the device as isrrequired for devices supported upon the top of the bar being painted or closely adjacent thereto.,

Two handle supporting studs extend laterally of, and from the outer edges of, the carriage II. The studs II are positioned in front of the center `of gravity of the carriage IIso that the major disposed at right angles to the brushes 5I.

or in the gutter of," the greenhouse to! pushthe carriage II to the peak or gable of the` greenhouse roof. lThe pivoted connection of the bail portion t5: oflthe handle with the studs I'I permits the carriage, to freely" move longitudinally of the bar 'I4 as the handle 25 is pulled; and pushed by the operator. A finger portion I9 eX- tends from one side of the bail portion I8 and toward the front portion of the carriage I'I. Since the greater part of the weightof the carriage and attached parts is in the rear of the pivoted connection at the studs Il, the carriage tends to tip backwards, that is, to the left. in Figure l, upon the 'lifting of the carriage by the handle 2i) up from the bar 14. The finger portion I9: is adapted to engage upon the top edge of the carriage I I and thus prevent the carriage from tipping too far back as the device is lifted up to transfer it from one bar to another.

A'pair of side brushes 5I are mounted to the carriage Il on opposite sides: of the elongated open space 33. The brushes 5I are relatively elongated and disposed longitudinally ofthe carriage II in a manner that the bristles 5i) of the brushes 5I may engage the b-ar 'I4 through the open space 55. Two brush carrying members 52 are provided for supporting the brushes 5I in position on the carriage II.. Each brush `carrying member 52 is in the form of a flat plate, prefn erably of metal, also extended longitudinally of the carriage lI. Each brush carrying member .52` has a slight bend 55 formed therein for ilexing the bristles 5B inwardly of the carriage toward the open space 33. The bottom edge of the brush carrying member is bent back upon itself to form a flange or engaging portion 55 which is adapted ,to slidably engage the upper surface of the inclined sides I2 of the carriage II. Slots 5'? are formed to extend vertically of the brush carrying members 52 to accommodate `bolts 58 securing the brushes 5I to the brush carrying members. 52. The arrangement of the slots 5'I and bolts 55 permit an adjustment of the position of the brushes 5I relative to the brush carrying members 5,2 and thus permit. the brushes 5I to be lowered as the bristles 5I): may wear out in use.l Adjacent opposite ends of the brush carrying members 52 there are ears on end portions 53 The end portions 53 may be formed integrally with the brush carrying members 52 or may be secured thereto by welding, Each of the end portions 53 has an elongated slot 54 disposedv therein. As better illustratedin Figure 2 the slots 54 of the opposing brush carrying members 52 are disposed at an angle to each other. The slots 54 in the end` portions of each brush carrying member are parallel.

A rod 5i carried by the carriage II is accommodated in the slots 54 of each brush'carrying member 52. The rods 5I are secured to an end wall of the carriage by the threaded portion B3 of the rod 5I being threaded thereto. The opposite end of the rods 5I are bent to form the bent portion` 52 which permits the rods 5I to be readily inserted land threaded into position. `The end portions 53 of the brush carrying members 52 aretherefore slidably carried upon the rods 5I, a limited movement being permitted by the rods t! in the angularly disposed slots 54.

Small pegs 59 extend from the upper edge portion of each brush carrying member 52 and are positioned substantially half way between the ends of the brush carrying members 52. A coil spring 55 under resilient extension extends between the two brush carrying members 52 and has its ends hooked or connected to the pegs 59.. The resiliency of the coil spring 60 is such that the brush carrying members 52 are yieldably urged towards each other. The central position of the pegs/*59 provide a balance so that the spring 60 urges both longitudinal ends of the carrying members 52 with an equal force.

`The longitudinal ends of the brush carrying members 52 are spaced from the end walls of the carriage I I to permit the brush carrying members 52 totilt and to move between the end walls of the carriage II. The relationship of the brush carrying members 52 to the end walls of the carriage II is best illustrated in Figures 5 and 6.

Since the brush carrying members 52 freely ride uponthe rod; 5I extended through the slots 54 a considerable amount of play is permitted. The brush carrying members 52 may go up on one end and down upon the other end by reason of the sliding of the slots 54 relative to the rods BI and by reason of the spacing of the brush carrying members 52 between the end walls of the carriage il. As the carriage is moved upon the greenhouse with the bristles 5D in engagement with the bar 'i4 the friction or resistance of the bristles 55 upon the surface of the bar 'I4 causes a longitudinal tilt of the brushes 5I land the brush carrying members 52 attached thereto. The play between the brush carrying members 52 andthe end walls of the carriage II permits a limited sliding movement of the brushes 5I relative to, and longitudinally of the carriage II. Upon movement of the carriage in the opposite direction the engagement of the bristles 5.0 upon the bar 'I4 tends to tilt the brushes 5I and brush carrying members 52 attached thereto in the 0pposite tilted direction. By means of this limited play andtilting permitted to the brushes 5I a painting action simulating the action of proper hand painting is obtained. The arrangement of the parts for limiting the sliding and tilting of the brushes, however, insures accuracy in the application of the paint to the narrow strip or bar.

Again referring to Figure 2, it is to be noted that the engaging portions 55 of each brush carrying member 52 is adapted to change the angularity of the carried brushes 5I as the engaging portions 55 move up and down upon the inclined sides I2 of the carriage II. The angularity of the slots 54 also tends to change the angularity or tilting of the upper part of the brush carrying members 52 as the end portions 53 move up and down relative to the rod 5I. As noted in Figure 2, the angularity of the slots 54 in respect to each other is more acute than the angularity of the inclined sides I2 in respect to each other. There is therefore a scooping action provided by these two angularities as the brush carrying members 52 are moved toward and away from the elongated open space 33. The resilient action of the coil spring 60 tends to force the brush carrying members 52 downwardly and inwardly toward the elongated open space 33 by reason of the described angularity and movement of the brush carrying members 52 toward each other. Therefore, the brushes 5I are constantly urged downwardly and inwardly toward the bar 'I4 exposed through the open space 33. In this manner the bristles 55 of the brushes 5I are urged into goodpainting engagement with` the bar 14. When the carriage II is lifted up from the bar Mfby the handle 25 the brush bristles 50 tend to move inwardly toward each other and to close the open space 33. Upon placing the carriage II down in position again over another bar 14 the bristles 59 flex to permit the bar 14 to extend up between the ends of the bristles 50 of the brushes 5l. Uponlongitudinal movement of the carriage l l relative to the bar 14 the bristles 50 being partially stiff and partially flexible may push the brush members 5l lightly upwardly in opposition to the pull of the spring 60. The resilient action of the spring 65 is adjusted in opposition to the bristles pressing against the bar 14 to insure a proper pressure of the bristles 50 downwardly and inwardly toward the bar 14 and thus maintain the bristles 50 of the two brushes 5I in good painting engagement with the surface of the bar 14.

A supply of paint is provided by the paint container 23 mounted above the carriage Il by means of the two `brackets 22. The brackets 22 secured to the front end of the carriage Il by means of the bolts 2l extend upwardly therefrom in the manner indicated in Figures 1 and 2. Four corner lugs 24 are formed upon the upper edge of the cylindrically shaped container 23. Bolts 25 extending from the front corner lugs 24 accommodate open spaces in the upper ends of the bracket supports 22. By turning the wing nuts 26 down upon the bolts 25 the container 23 is firmly secured to the brackets 22 and held in position above the carriage Il. Four bolts extend upwardly from the four corner lugs 24 of the container 23 to provide securing means for a cover 29. Hook portions 32 extending from the periphery of the cover 29 are adapted to extend around the bolts 21 and upon tightening of wing nuts 28 the cover 29 is firmly secured to the container 23. Upon loosening of the wing nuts 28 a small amount of rotation of the cover 29 disengages the hook portions 32 and permits the cover 29 to be lifted up from the container 23. A ll plug 33 is threadably secured in an opening provided in the center of the cover 29 to provide ready access to the container for filling it with paint. An air vent 3i extending through the ll plug 39 permits enough air to enter the container 23 to facilitate the flow of paint therefrom. The central portion of the cover 29 is depressed to form a sump sloping toward the opening closed by the ll plug 33. The construction provides a convenient funnel for causing paint spilled on the cover to flow downwardly into the central opening in the cover.

A valve body 34 is formed upon the bottom of the container '23 by an extension integrally formed with the container 23. An opening is bored longitudinally of the valve body 34 and a valve stem 35 extends through the opening. The valve stem 35 makes a close sliding t with the valve body 34 to permit the valve stem 35 to be rotated within the opening provided in the valve body 34. A coil spring 36 disposed around the end of the valve stem 35 presses yagainst a Washer and cotter pin 31 secured to the end of the valve stern 35. The other end of the coil spring 36 presses against the front face of the valve body 34 and therefore the valve stem 35 is resiliently held within the valve body 34 in the posi' tion illustrated in Figure 3. A stop pin 38 engaged to a side of the valve stem 35 slidably engages against the rear face of the valve body 34 and thus prevents the valve stem 35 from moving too far forward relative to the valve body 34. In this manner the valve stem is held in proper position withinthe valve body 34 to provide a proper valve arrangement. The handle 39 extending from the rear end of the valve stern 35 permits the rotation ofthe valve stem 35 into a desired position. Indicating marks formed upon the outside face of the container 35 show the degree of rotation to which the valve stem 35 is to be turned by the handle 39 during the steps of the painting oper-A ation.

A chamber 43 is formed within the valve body 34 immediately below the opening provided for the valve stem by boring a longitudinal bore through the valve body 34. To enclose the chamber 43 plugs 40 and 42 are threadably secured in place to close the ends thereof. Figure 3 better illustrates the form of the chamber 43 and the closing plugs inserted in place. A vertical bore is formed through the valve body 34 and up through the container 23 to provide a communication between the container 23 and the chamber 43. The lower end of this vertical bore is closed by the plug 4| which may be readily removed when it is necessary to clean the vertical bore by passing a wire or rod therethrough. An opening 44 extends through the valve stem 35 and the opening y44 is adapted to register with the opening 45 provided in the container 23 by the forming of the vertical bore. By turning the valve stem 35 to various degrees of rotation the degree of registration of the openings 44 and 45 is varied. e Therefore by moving the handle 39 to various positions the ow of paint from the container 23 down through the openings 44 and 45 into the chamber 43 may be entirely shut off, may be partially shut off, or may be completely open.

A feed pipe 46 is threadably secured to the bottom of the Valve body 34 and disposed at an angle thereto. The arrangement of the pipe 46 relative to the chamber 43 is such that paint flowing down into the chamber 43 flows into and through the feed pipe 46. Two openings 41 are formed in opposite sides of the feed pipe 46 near the lower end thereof to permit the paint flowing inthefeed pipe 46 to escape out through the openings 41. A spreader or trough 49 is secured to the bottom of the feed pipe 46 by means of the threaded plug 48 which also closes the bottom of the feed pipe 46 to cause all of the paint therein to flow out through the openings 41. The trough or spreader 49 is bent at an incline on opposite sides of the feed pipe 46 to conduct the paint flowing out through the openings 41 over to the upper side of the brushes 5I. as better illustrated in Figure 2. The side edges of the spreader 49 are turned upwardly to cause the paint to fiovv off from the lower ends of the spreader 49. The slight angularity of the feed pipe 46 conducts the paint to the front end, that is the right end in Figure 1, to provide paint to the brushes approximate the most forward end of the painting device as it is moved to the upper limit of the greenhouse near the peak or gable thereof. The spreading of the paint by the spreader 49 to the side of the bristles 59 keeps the bristles 50 well saturated 'with paint for applying the paint to the bar 14.

Since the paint is not distributed from the feed pipe 46 directly upon the bar but is rst distributed to the bristles 50 of the side brushes 5I the paint does not drip from the device as it is lifted from one bar to another. The disposition of the openings 41 in the opposite sides of the feed pipe 46 and the disposition of the spreader 49 is such that an equal amount of paint is distributed to each of the brushes 5 l.

The paint is applied by the brushes to the bars 14 by means of the engagement of the bristles 50 of the brushes 5| upon the surface of the bar 14. The bristles 66 of the end brushes 65 contacting the bar lll;` further spread out the` paint appli-edi bythe side brushes I'. Since the front end brush 65 is positioned. at the most forward end. ofthe carriage Hl the bar isi brushed to its uppermost limit upon movement of the carriage Il up the side ofthe4 greenhouse to the peak'v thereof. By moving the carriage I'I uprand down the greenhouse paint is uniform-1y and smoothly applied and brushed upon the greenhouse bar to present a neatly andv completely painted bar without smearing or waste'. A minimum of effort isl required and a` maximum of eiiiciency is obtained byl the,` use of the device y having the construction herein described,`

My invention includes the construction and utilization of a brushing device wherein paint is not applied to a bar but in which the bar is brushed by my device, such as for brushing off rust, dirt or old paint prior to the application of a coat of paint. It is understood that the references herein to a painting device are also applicable to a brushing device insofary as the painting device is not directed to the supply and application of paint.

Although. I have described my invention with a certain degree of 'particularityg it is understood that the present disclosure has, been made only by Way of example and thatxnumerous changes in the details of construction and the combination and arrangement of parts may be: resorted to without departing from the spirit and the scope of the invention as hereinafter claimed.

I claim as my invention:

l'. A device for'applying paint to the glass` supporting bar of a greenhouse, comprising in combination, a carriage having an opening ina lower portion thereof, the carriage having walls disposed on an incline toward, and on opposite sides of said opening, a rpair of brush members disposed at an incline toward, and on opposite sides of said openingsaid brush members hav-ing bristles `extendahle through said opening to engage said bar, a brush carrying member for mounting each of said brush members, respectively, in said carriage, each said brush carrying member having a first portion formed to slidably engage said inclined walls', respectively, and having a second portion formed to limit sliding movement -of said portion relative to said inclined walls, rsaid limited sliding movement of the brush carrying member limiting movement of each brush member toward and away .from said juxtaposition to said bar to apply paint thereto.

2. In a greenhouse bar brushing device having a carriage for carryingbrushes in brushing position relative to the bar to be brushed, said carriage having an .opening in a lower portion thereof and Walls disposed at an4 incline toward said opening, a pair of brush carrying members for carrying said brushes in position toestond through said opening and to engage said bar, each of said carrying membershaving a portion slidable on said inclined walls, respectively, to move relative to said opening and relative to each other and having two spaced portions adjacent opposite endsnof the carrying members for guidi-ng the vmovement of said opposite ends relative to said carriage, said spaced portions having stops for limiting the movement of each of said opposite ends, and resilient means for urging said carrying members toward said opening and toward each other, the arrangement of the brush carrying members and said carriage providing for the movement of said brushes toward and away from said bar and for the longitudinal tilting of said brushes at varying angles to said carriage as the carriage is moved longitudinally of` said bar.

3. In a greenhouse bar brushing device havinga carriage for carrying brushes in brushing position relative to the bar to be brushed, said carriage having an open space for exposing said bar to said brushes, supporting meats carried by the carriage for supporting a pair of brushes disposed at an' angle to each other and toward said open space, slide means for sliding saidbrushes towardand away from said open space, stop means for limiting the sliding movement of said brushes, and resilient means for resiliently urging said brushes toward said open spaceto engage sai-d bar. Y

4. In a greenhouse bar brushing'device having a carriage for carrying brushes inbrushing position relative to the bar to be brushed, said carriage having an elongated open space for exposing said bar to said brushes, a pairH of longitudinal supporting mem-bers carried by the carriage for supporting a pair' of brushes, respectively, said supporting members positioning said brushes longitudinally oi said" open space and at an angle to. each other on opposite sides ofsaid open space, each of said supporting members having an engaging portion slidable relative to said carriage to move saidbrushes relative to said open space and having stop portions adjacent the ends of said supporting members limiting move- `ment of said ends, respectively, to provide for a limited, longitudinal tilting of said brushes,` and yieldable means for urging said supporting members toward said open space to engage said brushes against said bar, the arrangement of the supporting. members, the carriage, and said yieldable means maintaining said brushes in brushingrposition along said bar. as the carriage is moved longitudinally of the bar.

5. In a greenhouse bar brushing device having a carriage for carrying a brush in brushing position longitudinally of the bar to be brushed, a brush carrying memberhaving a first portion for adjustably carrying said brush and having a second portion slidably engaging said carriage, said second portion moving said brush carrying member relative to the carriage to vary the position of said brush relative to the saidbar, and having a third portion for engaging the carriage to limit the said movement of the brush carrying'membensaid third portion being spaced relative to the carriage for the movement of the brush carrying member toward and away from said bar and for the tilting of the brush carrying member longitudinally of the bar for varying the degree of extension and the longitudinal angularity of said brush relative to said bar.

6. In a` greenhouse bar brushing device, a carriage to be moved ,along the greenhousein juxtaposition to the bar to bev brushed, said carriage having spaced end` walls and inclined side walls connecting said end walls said carriageihaving an elongated open space in a lower portion thereof toward which said side Walls incline, Va. pair of brush carrying members positioned longitudinally of. said carriage intermediate of said end walls and slidably engaging said side Walls,l said brush carrying members having end portions disposed substantially parallel to said end Walls, said end portions having elongated slots therein, the elongated slots of each brush carrying member being at an angle to the elongated slots o f the other brush carrying member, stop means carried by said end Walls and extending through the said slots, respectively, for limiting the sliding movement of said brush carrying member relative to said side walls, said end portions being spaced from said end walls, said brush carrying members being tltable between said end walls,

adjustable means for mounting a brush to each of said brush carrying members, the brushes being extendable through said open space to engage opposite sides of said bar, and yieldable means engaging the said brush carrying members intermediate of the said end portions thereof for yieldably urging the brush carrying members toward said open space, the `arrangement of the carriage, brush carrying members, stop means, and yieldable means providing for variable extension and angularity of thebrushes relative to the carriage as the carriage is moved along the greenhouse.

7. A device for carrying brushes in brushing position along a greenhouse bar, comprising a carriage member to be movedalong the greenhouse on opposite sides of said bar, said carriage member having an elongated open space inl a bottom portion thereof for exposing said bar to said brushes, said carriage member havinginclined portions on opposite sides of, and inclined toward, said open space, a pair of brush carrying members for carrying said brushes, said brushes being extendable through said open space to engage said bar, said brush carrying members being slidably carried by said inclined portions and being movable at varying angles to the 1ongitudinal dimension of, and relative to, said open space to change the degree of extension and an'- gularity of said brushes toward said bar,jstop means carried bythe carriage member for limiting said movement of the brush carrying members, and yieldable means for urging said brushes through the open space into engagement with said bar as the carriage is moved along the greenhouse.

8. In a device for brushing a longitudinal strip of material, the combination of a carriage to be moved parallel to said strip and having a longitudinally disposed open space in a bottom portion thereof for exposing said strip, a Vpair of brush carrying members for carrying brushes on opposite sides of, and extended through, said open space to engage said strip, engaging means carried by said carriage for slidably engaging said brush carrying members, said engaging means being disposed for the movement of the brush carrying members toward and away from said open space at varying angles relative to the longitudinal dimension of said open space, andfstop means carried by the carriage for ,limiting the said lmovement of the brush carrying members.

9.'In a greenhouse bar brushing device having a carriage for moving a brush longitudinally along the bar to be brushed, said carriage-having a bearing' surface inclined toward, and disposed longitudinally of, said bar, and having projecting portions adjacent the longitudinal ends of the carriage, abrush carrying member having a longitudinal portion engageable WithV a A brush disposed longitudinally of thecarriage and extended toward said'bar and having an' engaging portion sldably'engageable with said bearing surface of the carriage to move'relative to, and at an incline to, said bar, said brush carrying member having end portions disposed at an angle to the said longitudinal portion and movable substantially parallel to the'said longitudinal ends of thejcarriage, saidend portions having slots therein for accommodating said projecting portions of the carriage to limit movement of the brushy carrying member relative to the carriage, said slots being disposed at an incline to said longitudinal portion, the brush carrying member being inclinable at varying angles in said limited movement, said end portions being spaced from said longitudinal ends of the carriage, the brush carrying member being tiltable longitudinally of the carriage to vary the longitudinal' angularity of the brush extending toward said bar.

n 10. A device for applyingl paint to the glass supporting bar of a greenhouse, comprising, in combination, a carriagev adapted to be moved along the greenhouse, brush means carried by the carriage and adapted to engage said bar, supply means carried by the carriage for supplying paint, and paint distributing means carried by the carriage and in communication with said supply means for distributing substantially equal quantities of paint to the brush means at a distance from, and on the opposite sides of, said bar.

11. A device for applying paint to the glass supporting bar of a greenhouse, comprising, in combination, a carriage to be moved along the greenhouse longitudinally of the bar to be painted, a pair of longitudinal brushes hingedly connected' to said carriage and disposed toward eachother to engage opposite sides of said bar, means carried by the carriage for swinging said longitudinal brushes into engagement with said bar, paint distributing means for distributing a ow of paint to each of saidlongitudinal brushes torapply paint to said bar, and a pair of end brushes adjustably mounted adjacent opposite ends, respectively, of said carriage for brushing the applied paint on said bar.

12. A device for applying paint to the glass supporting bar of a greenhouse comprising, in combination, a carriage constructed to straddle and to be moved longitudinally of the bar to be painted, saidcarriage having an elongated open space thereinfor exposing said bar, a rst pair of brushes disposed to engage opposite sides of said bar, supporting means connecting said carriage and said first pair of brushes for supportingsaid brushes, said supporting means being yieldably movable toward and away from, and at variable angles to-the longitudinal dimension of, said open space to maintain said brushes in painting engagement with said bar, supply means carried by the carriage to supply paint to each of saidrst pair of brushes at a distance from said open space, a second pair of brushes engageable with the top of said bar at opposite ends of said carriage, and mounting means connecting said second pair of brushes and the opposite ends, respectively, of said carriage for adjustably securing the second pair of brushes in engagement with said bar.

13. A device for applying paint to the glass supporting bar of a greenhouse, comprising, in combination, a carriage having an open space in a bottom portion thereof and extended longitudinally of the carriage for exposing said bar, said' carriage havinglateral portions extending laterally of the carriage from said open space, the said carriage having supporting portions to support brush means and a paint supply container above said lateral portions in juxtaposition to said open space for applying paint to said bar, two pairs of spaced wheels journalled on opposite sides of said carriage for permitting the carriage to be moved parallel to said bar, said wheels being positioned adjacent the outer edges of said carriage at a lateral distance from said open space on said opposite sides for supporting said carriage, brush means, and paint supply container and being dispose-d to extend below the top of said bar to ride on said glass, the arrangement of said Wheels and said carriage permitting said carriage to straddle said bar and to be supported on the greenhouse without external restraint against tipping sidewards.

14. The combination of a rst pair of brushes disposed at an angle to each other to engage a greenhouse bar, paint supply means. for supplying paint to a side of each of the rst pair of brushes Within the included angle between the brushes, the arrangement of the iirst pair of brushes and the paint supply means providing for the application of paint to the engaged bar, and a second pair of brushes positioned at the opposite ends of the rst pair of brushes for brushing the paint applied to said bar.

HERBERT B. SABIN. 

